... .3,NO.4,hairline finish 3,sheet metal sheet deburring machinethis operation of grinding polishing machine is for metal sheet surfaces finishing such as : No4,No3 ... .55MPa0.55MPa0.55MPaKeyword: grinding machine, SS grinding, stainless steel grinding machinery, polishing machine Polish Machine, Polishing Machine, Stainless Steel Polish, SS polish machine,this metal sheet deburring machine